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    <title>课程表</title>
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    <link rel="stylesheet" href="课程表.css">
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<table>
    <caption>课程表</caption>
    <tr>
        <!--th就是能够加粗强调的td-->
        <th></th>
        <th>星期一</th>
        <th>星期二</th>
        <th>星期三</th>
        <th>星期四</th>
        <th>星期五</th>
    </tr>
    <tr>
        <td>1<br/>8:30</td>
        <td class="course en" rowspan="2">大学英语</td>
        <td></td>
        <td class="course pe" rowspan="2">大学体育</td>
        <td></td>
        <td></td>
    </tr>
    <tr>
        <td>2<br/>9:30</td>
        <td></td>
        <td></td>
        <td></td>
    </tr>
    <tr>
        <td>3<br/>10:30</td>
        <td></td>
        <td class="course xxxt" rowspan="2">信息系统</td>
        <td class="course xs" rowspan="2">形式与政策</td>
        <td></td>
        <td class="course sjjg" rowspan="2">数据结构</td>
    </tr>
    <tr>
        <td>4<br/>11:30</td>
        <td></td>
        <td></td>
    </tr>
    <tr>
        <td>5<br/>12:30</td>
        <td></td>
        <td class="course mn" rowspan="2">模拟电子技术基础</td>
        <td></td>
        <td class="course dz" rowspan="2">电装实习</td>
        <td></td>
    </tr>
    <tr>
        <td>6<br/>13:30</td>
        <td></td>
        <td></td>
        <td></td>
    </tr>
    <tr>
        <td>7<br/>14:30</td>
        <td class="course mg" rowspan="2">毛概</td>
        <td></td>
        <td class="course dl" rowspan="2">电路、信号与系统实验</td>
        <td></td>
        <td></td>
    </tr>
    <tr>
        <td>8<br/>15:30</td>
        <td></td>
        <td></td>
        <td></td>
    </tr>
    <tr>
        <td>9<br/>16:30</td>
        <td></td>
        <td></td>
        <td></td>
        <td></td>
        <td class="course xh" rowspan="2">信号与系统</td>
    </tr>
    <tr>
        <td>10<br/>17:30</td>
        <td></td>
        <td></td>
        <td></td>
        <td class="course pe" rowspan="2">大学体育</td>
    </tr>
    <tr>
        <td>11<br/>18:30</td>
        <td></td>
        <td></td>
        <td></td>
        <td></td>
    </tr>
    <tr>
        <td>12<br/>19:30</td>
        <td class="course xx">选修</td>
        <td></td>
        <td></td>
        <td></td>
        <td></td>
    </tr>
</table>
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